/*
 * Copyright (c) 2008 VMware, Inc.
 * Copyright (c) 2009 John Pritchard, WTKX Project Group
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package wtkx;

import wtkx.wtk.HorizontalAlignment;
import wtkx.wtk.content.ButtonDataDecorator;

/**
 * Component representing a "radio button".
 *
 * @author gbrown
 */
public class RadioButton
    extends Button 
{
    private static final Button.DataDecorator DEFAULT_DATA_RENDERER = new ButtonDataDecorator();
    static {
        DEFAULT_DATA_RENDERER.getStyles().put("horizontalAlignment", HorizontalAlignment.LEFT);
    }


    public RadioButton() {
        this(null, null);
    }
    public RadioButton(Button.Group group) {
        this(group, null);
    }
    public RadioButton(Object buttonData) {
        this(null, buttonData);
    }
    public RadioButton(Button.Group group, Object buttonData) {
        super(buttonData);
        super.setToggleButton(true);

        this.setGroup(group);
        this.setDataDecorator(DEFAULT_DATA_RENDERER);
        this.installSkin(RadioButton.class);
    }


    public void press() {
        this.setSelected(getGroup() == null ? !isSelected() : true);

        super.press();
    }

    @Override
    public void setToggleButton(boolean toggleButton) {
        throw new UnsupportedOperationException("Radio buttons are always toggle buttons.");
    }

    @Override
    public void setTriState(boolean triState) {
        throw new UnsupportedOperationException("Radio buttons can't be tri-state.");
    }
}
